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The Fetch, Decode, Execute Cycle
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Total cards: 3•Content version: v4•Public deck•Updated: 8/1/2026
Card preview (3)
#1
Front (Question)
Explain the Fetch part
Back (Answer)
• PC gets the new instruction by fetching the address of the next instruction from the RAM via the address buss • The address in the PC is copied to the MAR • PC increments to the next instruction • Instruction stored at the location held by the MAR is copied to the MDR via the data bus
#2
Front (Question)
Explain the Decode part
Back (Answer)
• Control Unit will decode the instruction and send control signals to the component that needs to act
#3
Front (Question)
Explain the Execute part
Back (Answer)
• The component that is needed performs the operation This may be the: • ALU